I've seen posts here and there as to how puny the Rebel Fleet was and how silly the stand up fights of Armada are in reference to the canon lore. And while I ultimately agree that this is not a conflict of equals and that Armada type battles would be far from routine, the FFG current canon does hold it up better than one my think and certainly the films do too.
Exhibit A: the XWing and Tie Fighter game series. They've been clearly brought in well after the Disney take over. We have Tie Defenders and Marik Steele in through our newest released expansion. That's one of two (maybe three) of the protagonists from the series. So at least for Armada the games are canon and dozens of those battles fit the Armada set up extremely well
Exhibit B: Thrawn. As per Rebels he's in. The Thrawn era conflicts would see (and did) smaller capital ship battles all over the place and a more robust Alliance (NR) Navy to respond to Imperial warlords. So this time period alone (which is also when the EWings came about, which again we just got) justifies Armada well.
Exhibit C: Battle of Endor when watched carefully.
The rebels brought around 10 Mon Cal cruisers, at least 3 frigates, a half dozen corvettes and a dozen or more gallofrees. A much bigger force than I thought. It looks like (I paused a lot) at worst just 2 to 1 odds against the rebels (if you ignore the Executor and Death Star). Horrible odds, but better than I would have said off hand. Combine this with
Exhibit D: Rogue One. The Rebels fight a very armada like battle with ships we didn't know about and clone war assets that are now valid post Disney.
Clearly an Armada battle is not the stretch some portray it to be and is fairly true in universe to canon happenings.