Like most controversial topics, it is easy to gain an opinion of electroshock therapies and reject most others. It is very important to keep an open mind when reading the experiences of others and to not come to any conclusions until you feel you've seen all that there is to see regarding the topic. Even so, it is a good thing to not revert back to having a static opinion even after you have made a discovery as the world is constantly evolving and you never know when something that can truly change your mind will come along.
On a less existential note, electroshock is a relatively new practice; particularly when compared to tried and true medical applications like alcohol disinfectants or vaccines. It also doesn't help that the idea of being electrocuted is not pleasant to most, even in a controlled environment. There is little information surrounding the topic and what little can be scrounged is often not very concrete or can be easily contradicted by an equally hard to find source. Always keep searching and always take everything with a grain of salt.