The compression readings are low, no ifs, ands, or buts about it. This test should be revisited and done properly the next time.
I will add that when compression gets low like this that misfires are going to develop as low compression like this can start killing off spark plugs.
Can an engine run at least apparently well with compression this low? Yes. The question is how long and and would it be worthwhile to sink money into a problematic motor.
Given the low compression, the failure to recognize that basic problem, and a stratospheric price on a set of injectors I would not rely on this shop too much.
(I'll also add that some service manuals refer to compression readings like 125 being fine and so on. Well, those manuals are dead wrong. They were written by technical people with no clue and compression readings like this are not the only flaws to be found in the specifications section.)