no... other than the addition of glass fibers, which i had considered but which for that small hole vs the thickness of the epoxy, is not really an issue.
and any glass fiber reinforcment would have to be done in a taperd depression from the outside of the hull to do any good, otherwise, if it was done only on the inside, which is how most DIYers do it, it can still chunk out if the bond breaks loose from the hole due to poor preparation.
I have used fiberglass and marine tex to make repairs and fill holes on many boats, and depending on the size of the hole/damage and the boat itseld, i choose the method that I think will work the best.... and ive never had a failure.
I have also done like other people have and actually mixed up epoxy, thickened it with fillers and then used it in the same manner with the same results.... marine tex is just handy to use.
taking into consideration the size of the boat, its usage, and where the hole is located, filling a hole on a small boat that isnt taking a lot of stress isnt rocket science nor does it take the most intensive process in the industry.
so no, all things considered in this particular situation, I have not heard a reason not to use marine tex, but only ways to make filling the hole more complicated for the OP...
a lot of people will have an opinion, and some of them dont have anything to back it up with... but they only agree with what they have heard from someone else, who has heard it from someone else... uninformed guesswork... wives tales... rumors.... and misinformation
I have experience to back up my claim here.
