If it merely removes challenge I would not favor it. To call something sport, the skill and effort of the human competitor(s) must be the primary determinant of success.
A long time ago a friend used to quip "it's not a sport unless steroids help".
By that definition, I don't think curling qualifies. But perhaps someone who actually has participated can chime in. E.g. does having more physical strength help in the initial push given to the rock?
Where it's more important is sweeping, up to this point at least. Teams like Jacobs have shown how much of an advantage powerful sweeping is - the range of accuracy is much wider for them compared to me throwing the same hit with two club sweepers. That's the second part of the equation that most people miss in thinking that curling isn't a strength sport.
Of course now, you don't need to be nearly as strong to achieve the drastic changes in rock movement that you did before, and that's one of the concerns.