Arcam get more right than most hi-fi companies. As I've said before, too many people judge them purely on entry level products like the A65+ and A70 which were both fairly weak products on their own. However, stepping up to bi-amping and/or using products from further up the range really shows what Arcam are capable of. The latest entry level amplifier, the A18, is a definite improvement on the A70 its replaced as well.
There are Arcam owners on this forum who love their music and are very satisfied with their choice of hi-fi. Anyone who implies that Arcam engineers work to kill the music and make it boring needs to find a bit of balance. Whether or not you personally enjoy the Arcam sound, it is impossible to deny the large, loyal following the brand has and the quality of engineering that goes into its products.
Every brand and its products divides opinion. I hated the B&W 685s and the Marantz 6002 series components but, again, there are people on here for whom they give a huge amount of pleasure. I love NAD gear and think, on balance, that the C325BEE is the best amp available before you get up to Denon PMA1500AE, Naim Nait 5i, and Rega Mira territory. There are plenty of other people who can't stand the NAD approach.
We are all different. We have different ears, like different ranges of music, use our equipment in different rooms, and bring different requirements to the table. Lets be grateful that there are brands out there like Arcam, NAD, Denon, Naim, Marantz, and Rega that cater for all our different requirements to such incredibly high standards and for such excellent value for money.