If they add a remote rep bonus to a bot, they will reduce the amount repped on the modules and/or the extensions.
The logic is simple, if they currently felt that remote repping was under-powered, they would have increased those values, since they didn't, then its safe to say the they feel its balanced at the current levels. Adding a bonus to a bot would make it over-powered, and require a nerf.
So, in the end, putting a RR bonus on a specific bot won't provide 'more' healing, it will simply make it undesirable to use RR on anything other than that bot.
Keeping the 'bonus' tied to the module and extensions allows greater flexibility in using RR.
The concept of the logi-bot was to give PVE miners/harvesters a role to play in PVP. That is still completely viable without an RR bonus on an industrial bot. It's OK if other PVP pilots can also provde support functions on non-indy bots, the role of 'healer' shouldn't be exclusive to indy players. This is one of those concepts left over from games like WOW where players wanted a monopoly on roles so they could have a guarnteed raid slot. In Perp, there is no limits to the number of players you can bring, so if you have an Indy player available, they are going to be welcome to undock and provide support. If there isn't though, it should still be viable to have another bot sacrfice a body slot to put an RR in (and still be reasonably useful since the Rep valued isn't balanced around a bot bonus).