To those pax who complain about firm landings, let me suggest the following.
Go and take a few lessons in a light aircraft weighing less than a ton.
Learn how to make an approach to landing at 65 knots (70mph) and land on a runway where it is important not to float due to length issues.
You will then understand that landing in the right place is more important that landing smoothly and so long as you arrive within the parameters, you will have done a good job.
Imagine trying to do the same in an airliner weighing over 50 tons, at double the speed or more.
Then have a little respect for the professionals who put the bird in, the right place, in all weather conditions, every landing and keep us pax safe by ensuring the aircraft gives book performance.
As a PPL who has made many hundreds of landings in light aircraft, I have immense respect for their performance.