Contributing can be done in many forms.
Languages, writing, design, etc.
So it doesn’t need coding knowledge to contribute.
But, not everyone who uses a tool also contributes to it.
A minority does - in fact - have time or will or means to contribute to the tool they use
As a comparison to WP, which has probably more than 1000 pledged contributors if not more, we still “win” even if WP has 10k contributors
There’s roughly 60 million websites using WP “they” say. Some say it’s much more (400 million, however this seems to be somehow wrong to me)
I think there’s an approximate “steady” number of contributors in cp if about 10 people
So ca 0.2% contribute!
WordPress would need ca 120k contributors to match those 0.2%
Five for the future sums up to ca 500, maybe 1000 and not all of them do even contribute to WP (many literally just have a profile but you can’t see a single contribution in years)
Even if, it’s no way close to 120k
Not even if the entire automattic team and the entire plugin devs would contribute you’d come to that number.
So I think it’s true that relatively more people contribute to CP than to WP, even considering the “unmentioned” contributors to WP.
(I hope my math is right lol, not my strong Suite)