I say let the electricians continue to sell the fixtures.
In most cases, we have already taken the dimmers and switches that they would have normally supplied out of the equation in lieu of dimming panels (which add a lot more work and headaches for those same electricians) Many times, the electricians are put off at ideas of automating lighting control, and who can blame them.
The biggest upside to them is that homeowners seeking out lighting control are probably not controlling a small amount of basic fixtures, they are controlling a LOT of high end fixtures, so the electrician can recoup the money lost on the dimmers and switches plus a significant amount more by supplying those fixtures. In certain cases, the homeowner may even hire a lighting designer to spec the fixtures and placement for the best effect. When this is the case, let them provide whatever fixtures they want, they will ALWAYS wind up increasing the scope of the lighting control for you.
High end integrators live and die by referrals, and the other trades are a significant part of that. The top builders all use the same handful of top tradesmen and they all talk. If we start reaching too deeply into another trade's till, it may end up costing you more than you will gain.

This isn't like retail, where the option is to allow a competitor to get the sale, the electricians and/or lighting design consultants in these projects are not competitors, they are allies.

We need to foster these strong relationships with these other trades to continue to get referred to the next big homes.