Then I would argue the biggest threat to safe and effective fracking is Saudi Arabia. As long as fuel prices are low, people are more willing to cut corners to make a profit. If prices are high, the added costs of effective regulation are an easier sell.
Active fracking projects in the US have dwindled to low levels thanks to low oil prices driven by Saudi Arabia maintaining production at current rates. This is a well-established fact.[0]
Your claim on the other hand is just an opinion at this point as I have seen nothing that indicates low oil prices lead to worse practices and procedures among domestic fracking firms.
Otherwise, you make a great point.