Which is hardly the point.
City is toying with the Prem.
Juventus is toying with Serie A.
Barca has easily dominated la Liga.
Bayern has toyed with the BL.
Does that mean only those teams have talent? Nope. That was Guardiola's point.
City is all of 2 points ahead of Liverpool (and won the league last season for the first time since 2014), and Barca is 2nd in Spain.
They also compete in the same league with Real and Atletico, who between them have 6 CL finals and 2 La Ligas in the last 5 years (and two Europa Leagues, if anyone cares for those - to even compare that to the French league is beyond ridiculous.
Bayern has toyed with the BL, but since you're talking in the past here (as it certainly isn't the case in the present), BVB is not that far removed from a CL final.
Other teams in France obviously do have talent - that does not make the league strong by itself.
Most of the "rest of the talent" is scattered and since PSG turned into a Qatari superclub clubs the league (barring that one year before Monaco was dismantled) has been a walk in the park for PSG - but (most importantly) unlike PSG, clubs like Bayern and Juve go far in Europe, more or less on a yearly basis.
The French clubs have (shockingly) won 2 European trophies. In the history of football.
That's less that Scotland, Ukraine, Belgium, former Yugoslavia, and tied with Sweden, Romania, etc.
The league keeps producing great talent, but that talent goes abroad before mounting a serious challenge in Europe or right as they're looking ready to do it.
Lyon teams of the 2000s were perhaps the closest they got to making a sustained challenge in Europe.
TLDR; of course there's great talent in France. They produce quality players more than any other league, including Spain.
But that does not make the league competitive, nor the clubs competitive in Europe.
I have no idea why you're so touchy about it.