It makes sense indeed and I’m sure most users will like it, but I’m not that certain that this is the standard in the online casino industry!
In most casinos, at least the ones I hve played at and tested, the minimum deposit is usually lower than the minimum withdrawal. This is understandable since they want to make it easier for users to deposit and keep them playing and spend as much as possible by preventing small withdrawals.

It can be not instant support with kind of delay and perhaps their support response speed is often lower in weekends than on working days. BetHog is still active with marketing and they need to maintain good and active support for their customers to make sure that fund spent on marketing won't be inefficient money use. To have good effects from marketing, there are other things must be good from the business so that users and guests can have reasons of joining, betting on the casino.
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The fastest way to get a response from the BetHog team is on their Telegram. They have multiple team members who can respond to questions quickly.

I know this because since the past 18 weeks that I have been a member of the Telegram group, I can say they are very responsive, providing useful information. And with regards to withdrawal they can help to process it. Even though they are still new in the game, they have the potentials to scale up which will definitely happen.

Having higher min deposit than minimum withdrawal is not a standard practice in this gambling industry, most other casinos usually come with lower min deposit than min withdrawal or equal min deposit/withdrawal.
At least on some casinos where I used to play, the min deposit is usually lower than the min withdrawal so basically bethog seems to be the first or maybe only few casinos that use the same strategy as bethog.
They should consider to reduce the min deposit if they want to get more players especially players with small-medium bankroll because $20 can be said as big enough for small players.