This seems like a repeated concern but it hasn't been actually evidenced anywhere in the past? The Klingon D6 and D7 aren't a menace to our ships because they sneakily cloak up to them, but because they just kick more ass than our ships do. The Newton with its narrow arcs performed fine against the Bird of Prey, which is actually the only Klingon ship that canonically has a cloak at this point. The D7 doesn't get a cloak until much later in the timeline(2260's).Once again, what's needed is defense to survive the inevitable Klingon Alpha strikes from stealth. That means better shield coverage, and with less mass that means we can not only build more hulls but out Archers and Pharos setups will be able to more effectively get them back into action more quickly after the fighting finishes. You're never going to be able to dodge an ambush strike from stealth - that's the entire point of the tactic in the first place.
Folks need to understand that Starfleet simply doesn't have a doctrine built around first-strike initiative, which is where maximizing agility in a dogfight shines the most. Better defense means that the underpowered but wider coverage basis for our phaser banks can be brought to bear for superior clapback under the most likely engagement scenario.
That's why the thin-saucer is frankly a much better fit for the Federation's needs right now.
We are haing a revote specifically because the engine stats were changed and this isn't so true anymore. Three engines is maximum usable thrust only for the Type-3, the Type-2 needs the thrust from the fourth engine to get to the maximum useful thrust(well maybe we can design a lighter ship to fit three Type-2's, but I don't want one because I want a big engineering hull to try and fit torpedoes in).The advantage of the thin saucer is that it's got more freedom for impulse configuration, and possibly(?) (there's a post by Sayle stating that it's a fluff statement) gets cheaper shields. The half saucer actually has more internal space to use on systems than the thin saucer (though obviously less than the full), as its impulse is externally mounted- it just locks us into either 2 or 4 engines, which could mean wasted power/cost depending upon what other choices we make.