Though sometimes been discussed in drone community, BLE usually is not regarded as a good option as a data transmission radio technology. I am not sure when and where these opinion started, but we can see that
these opinions about the downside of BLE are concentrated on following criteria. If we investigate further into these discussions we can find out that these opinions are actually not correct, or at least not precise. Unfortunately they are misleading community and public impression about BLE radio technology for quite some time.
Most common mis-understands No. 1: BLE is a PAN radio technology and its working range is very short.
NO.2: BLE communication has heavy delay in data transfer
No.3: BLE is a connection oriented protocol and is easy to lost.
No.4: BLE Data rate is very low