On the first point the money that is drip fed directly from the PL/TV isn't an insignificant amount and the Seasiders share of the pot will rise considerably. Whether more should be shared is debatable but in certain quarters some are calling for the ending of parachute payments, but that will only create another vacuum and/or exacerbate the problem of top flight wages.
You could reasonably argue that the EFL clubs have become more reliant on home grown players because they cant afford to bring in expensive imports, and Chelsea for instance have a tremendous network that gives young British players the opportunity to work with the best.
Plumbs, I'm not trying to justify a bigger share for the Seasiders, nor am I really suggesting that any changes to the current financial distribution would be prefereable. Without wanting to go on some long winded post, the issue is super complicated with all sorts of competing interests affecting the decision making and some things which are counter-intuative.
For example...
The Premier League has to try and compete with other foreign leagues for the best players and without doing so it risks a potential drop in revenue. Obviously clubs like Real & Barcelona operate differently within their own League set up, which adopts more of a 'Rangers / Celtic' domination approach and where increased spendinbg power and also prefereable climate & location as well as the overall Club status are a big draw for players. So from that perspective, there's a pressure on the EPL to retain as much cash within the confines of the 19 Clubs and potentially drive most of the revenue towards the top 5 Clubs.
Conversely, there's also a pressure to ensure that the League remains competitive so even for individual clubs some things are counter intuitive. It's in nobodies interests for one CLub to dominate and always win for example as that simply makes the League stale. I mean arguably that's a part of the issue with the Champions League..
Of course, there's also the longer term to consider, which requires investment at Grass Roots and ideally a strong League structure that sits beneath the EPL. This is desirable because it should bring up the overall standard of football within the country and improve the talent pool... That simply isn't possible by the type of scoop up all of the youngsters approach adopted by the Prem Clubs and through an academy system, because those players require exposure to competitive football and so a strong League is a vital component.... Of course, looking at it logically, if you really wanted to break the domination of the Spanish giants in European competition and also improve the English Natiuonal Team, then you really ought to be looking at the longer term and strengthening the quality of the Leagues root and branch as ultimately that will be achieved by producing a better standard of English born player...
This is why I said to S2020 that it was difficult to determine 'success' because the EPL has been very succesful in some ways, but at the same time it has not been very succesful and potentially even harmful in some other ways.
I really don't know what the answer is... or even if there is an answer TBH.... I mean once you dip your toe in the capitalist waters, you essentially accept that football will eventually eat itself. There is the option to legislate and to try and improve governance within the game, but if we legislate in the UK whilst other EU nations do not, then you potentially create a situation where legislation negatively impacts on the quality of the league, demand for the product drops off and the quality starts to spiral downwards...
However I must thank you all for this near two-ton run chase, it has been a team effort and I couldn’t have done it without you all! 
