Aggressive braking to vacate is definitely a theme. I brief FOs to plan a comfortable exit based on perf calcs... it’s not an achievement, after an stretching the flare for a smooth TD, to then slam the brakes on just to make E at Gatwick.
Regarding all this talk of ‘maybe they were told to vacate at next exit’... Being told to vacate at [whichever] taxiway is almost never a flight safety request, and if followed by flight crew too eagerly at the wrong moment it can certainly become one.
A well planned landing IAW landing performance calcs shouldn’t be a hard braking excercise... in the exception of performance limiting length (rare for most European A320/B737 commercial ops!).