The "modern" way time and again killed every single game that went that route save for the inventors of said way. none of them survived half as long as the old way games yet people will try to convince themselves and convince others that its the only way to keep subs and acting blind to the grave yard of games that what it actually is. I guess the main reason is those people is they never liked the MMORPG as it was (well at least didn't like some aspects of it but sadly those were vital for the genre) but still wanted to play and whatever changes that will suit their fancy will be welcomed and considered "correct" way of doing it regardless of if it will just kill every game in few months or a couple of years if they are lucky, in the end they get to play these games and sleep at night thinking yeah they are MMORPG players, that genre is not beyond them (for whatever reasons legitimate (like school or real life) or otherwise (like "too diffecult for me to comprehend this complex gameplay mechanics") that they can tackle anything (even if it was sedated first so they can win).
The result? yeah send this recently released game to the grave yard, make the next fresh one so we have new toy for a while then send it to the grave yard too and see what company will go in head first next for our future toy.
The old way longevity (whether you like how it was done or not) made the gaming companies big and small alike take notice and salivate over the profits that was made and the money flow for decades (yes I know you think those player base number are not big but it was a cash flow for decades that the companies saw as gold mine otherwise they wouldn't even try to cash in). The new way (which those companies think will earn them the same stability of the cash flow the old way got but with larger player base) is making those companies bleed money and be lucky if they broke even or if they made a small profit that is not worth the time and effort they put in the project (even if you think it was enough just go to the financial department of those companies and see what they had to say to the management about the numbers).
Its a matter of time. The old way profits made the companies rush in this genre for cash, but the new way is wrecking so many bank balances that you will see less and less get into this genre and whoever actually do it will be a cheap fast cash grab. A big change needs to happen otherwise this "modern" way will keep sending games to the grave yard and haunt the makers of said games and the others who consider going the same bath for all eternity.
The genre fans will suffer for it as they can never have a game they can call home for decades as they used to and will only have cheap knock offs on their hand for the foreseeable future.