Yes and no. If you don't get paid a penny for half the year, and you've budgeted all of your expenses from October 1 to April 1, and then you find out you're not getting paid until May 1, sure, you should have enough savings and cash flows and line of credit to pay the mortgage, but I'm not prepared to assume it would be easy for everyone. Nor do I think they should just be okay with it.
Certainly the smart players have their agents or financial managers pay them a monthly salary (and all the bills) 12 times a year. But if a player was dumb enough to spend a year's salary on a sports car or to buy their mom a house, that still doesn't mean he deserves to not get paid on time. Many of these guys are already paying spring training rent as well, an expense the team also doesn't cover. If you're Mauricio Llovera that probably means you're in an apartment with five other guys. If you're Rhys Hoskins maybe you decided to treat yourself to a big beach house knowing you had a big raise this year - and then you have to wait another month.
I would imagine many minor leaguers are struggling to hold down off-season jobs this year. Fewer jobs, and also, if you work as a mover or in retail or at a bar, do you want to expose yourself and set back your baseball career?
Anyway, by the terms of the CBA even Bryce Harper is entitled to be paid on the originally scheduled opening day, so I'm sure there will be accomodations, just like last year (even though the time period is much shorter).