Do you mean this MF02S (review) ? Be aware that it’s the floodier XHP70.2 version, maximum output is doubled but throw is reduced compared to the regular MF02 XHP35 HI version ( review ) (1281m to 880m on turbo, 980m to 550m sustainable on high, numbers from the reviews), as the XHP70.2 is a big LED with a dome. Given your requirements (how critical is seeing intruders at long range?) I’m not sure if the throw is enough, you may need to see some video reviews to compare, I’m afraid I don’t have much experience with throwers. Sometimes a thrower has a beam which is too thin, for example the newly developed laser throwers.
The most common domeless LEDs are the Osram “W1” aka “white flat 1mm”, the XP-L HI, the XHP35 HI and the SBT90.2 in increasing order of maximum output. There is a MF02S SBT90.2 version on the making that should have higher output and throw than the regular MF02 version, but the price can easily be $50 - $100 higher going by the FT03 example (there is a group buy on the forum that may reduce the price a bit). For expensive flashlights you should search the forum and reviews for coupons or group buys before buying.
Regarding the risk of LED failure, LEDs don’t fail randomly in the field. If the heatsinking is defective for some reason either will fail within the first hour or it will decrease output very slowly with areas burned out, you will eventually notice that something is wrong , but if the heatsinking is adequate it will last for many years. If something breaks because of a bad fall, etc. it will be the driver. If you are concerned get a cheaper flashlight ($30 or less) as a backup, some flavor of C8 with XP-L HI if you need it to be a thrower. Edit: if you are ok with something large as a backup the Astrolux FT03 SST40 (review) is on sale, however for maximum reliability I would rather get something from Convoy even if the output is lower.