Warden only drops 1-3 XPs, not 5 XPs as on Java

The Warden on Bedrock Edition only drops 1-3 XPs upon death, which is inconsistent with what Java's counterpart is supposed to be, which is 5 XPs.

How to Reproduce
1. Spawn a Warden.
2. Give yourself a very high strength effect.
3. Kill the Warden.

Observed Result
The Warden drops 1-3 XPs

Expected Result
The Warden should drop 5 XPs.