Consider this;
Supernatural Recovery costs 4 refresh. With 4 refresh, you could take foci and specializations to increase your Complexity for your favorite thaumaturgy by 7 (+5 focus, +2 specialization) and improve your favorite evocation element by +1 Power too.
This means that EVERY spell of your favorite thaumaturgy is going to be improved by 7 whole shifts - more than equal to paying a mild and a moderate consequence. In addition, this is included in your base thaumaturgic strength, meaning you can do such thaumaturgies without preparation - i.e. only in a couple of minutes.So, for supernatural recovery on yourself, it is about equal to spending the extra refresh in magic.
For supernatural recovery in others, yes, they can heal it really fast. So? In the same scene or so, they are still going to suffer the consequences. They could just as easily use their highest skills on maneuers on you to help you - each successful maneuer is +2 shifts and failed maneuers don't prevent you from casting.
If the other guy is a spellcaster instead of a guy with supernatural recovery, they could just as easily use a 4-shift evocation spell to apply 1 aspect on you to tag in ritual preparation. They do that 4 times without consequences. That's 4 aspects, or +8 shifts. I.e. they create a powered circle for you, forge a magical link to some nearby source of power, invoke lots of magical energy and magically help you focus flavor-wise. You could even do that by yourself - and that's without paying ANY consequences.