Not really. Some really good plants have come from MG soil when the grower understands the medium.
You look like you're good still but not for very long is things stay the same.
Right now, pH'd RO water is your best friend. There's probably a nutrient lock out because the soil is hot, your plant is young and a flushing might clear it or at least buy some time.
Look into an unfertilized planting soil on the cheap. Grab some perlite or vermiculite and mix the two. All of this is dirt cheap, like return bottles and cans for money cheap.
Mix the new things with a little of the soil and voila, good ghetto soil. This is your new soil that you can transplant into.
Alternatively,
Just keep watering and see how it goes. Plants are resilient and it could surprise you.
Flush, let mostly dry (5-7 days?) and flush again.
This should flush out some of the nutrients or it could make things a whole lot worse. Either way, problem dealt with.