Seen compressors burn up because of over sized evap coils. If the TXV is sized (ported) to lets say 3 ton and a 4 ton coil (3 ton Condenser ), the super heat will be high and your compressor motor may not get enough cool gas back to keep it cool, then it over heats and is short lived. If you put a 4 ton TXV on a 4 ton coil, again on a 3 ton condenser, then suction pressure will be higher causing other issues. Although I do more refrigeration now a days than AC, but after 40 years of doing this kind of work, sizing, spec out the equipment, I also seen the results of mis-matching. Back in the old days, a 1/2 bigger coil was common, but so was low air flow. Today, in most cases that does not exist. What I have seen is some manufactures not making a 4 ton coil and going with a 5 ton for a 4 ton condenser, again, they have a TXV and the percentage is less in that size range. Going from 4 ton to 5 ton is 25%, yet going from 2 ton to 3 ton is 50%.