The attached picture shows the set up that was the biggest improvement I have ever made to my AV set up over 20 odd years of different speakers/subs/amps.
All three are exactly the same model, positioned at a suitable height, with room treatment and were eventually hidden behind an AT projector screen. They should have also been beyond my means, but for a great ex-demo deal, so they will have to be the last LCR I ever buy...
Sounds panning across the front don't change and I never have problems hearing dialogue, even on content (usually TV programs) that get complaints about poor dialogue. I also never get that effect where the other speakers overwhelm the centre and I attribute this to them all matching.
Sure you can mix and match, hoping that it'll work out OK, but I never seemed to get the best results doing it that way.
FWIW my surrounds and Atmos channels are from the next range down, but share very similar voicing, just a lower maximum SPL capability, though of course they are closer to the MLP anyway, so have headroom to spare.
"Don't believe everything you read on the internet". William Shakespeare 1615