Of course, but be careful not to make the mistake of assuming that members in those communities are homogeneous. There's certainly no shortage of woo-woo style thinking, but there are also enthusiasts who think about it very seriously and analytically. These same people will also tell you that anything they say should be taken with a grain of salt. These are the people who should be mainly listened to.

Regardless, I fail to see any evidence that supports the assertion that you also need therapy, that you cannot benefit substantially without it. Those who have literally no first hand experience with psychedelics are not exactly objective either, but it sure doesn't stop them from confidently passing out advice.