The days of size comparison charts or deck plans having any meaning at all are long gone. Everything's malleable, it's like each show is an adaptation now not a continuation.
I mean, heck, considering how
wildly out of scale the
Enterprise-D was when it docked with Deep Space 9 in both "Emissary" and "Birthright," how the size of the
Defiant seemed to change from episode to episode (and was entirely too small in
Star Trek: First Contact), and how the
Delta Flyer just really should not have been able to fit inside the USS
Voyager's shuttlebay -- I for one am not entirely persuaded that size comparison charts or deck plans ever really had any meaning in the first place.
So much drama could have been avoided if CBS had been honest with the fans and said up front "We're rebooting."
They have been. It's not a reboot. You just don't like their selected instances of breaking with prior continuity. Which is fine, but that doesn't make it a reboot. Literally
every single ST series has selectively broken prior continuity though, so DIS and SNW are not new in that regard.
If it's meant to be in canon, then they needed to keep it in canon with the established story and aesthetic.
No they don't. Paramount owns
Star Trek, not you. They get to decide what is and is not in continuity and what is and is not canon.
They tried to have it both ways and call it canon while changing things
Which is how it works in many, many canons.