I say it depends. I really appreciate a company like Exo that sticks with what it is good at.As a business owner that is very narrow minded approach that leads to companies going under or being bought out..there are probably 5x or 6x more WT and Duck hunters than "Ultralight Monutian hunters" as a business owner why would you cap your market share in any industry?
I want every hunting company to put out duck waders...the more options the better...some of them are gonna be shit and some will be great the market will decide..I will probably patch up my 5 yr old Drakes use them again this yr and let the market decide if there is a better mouse trap.
Expansion can be good for a business, it can also kill it, just like failing to expand or diversify can kill it.
I have not been impressed with the Kuiu products I have owned, so as a brand I could care less about them.