Cannot set custom descriptors

so I have commented out all the ignored error codes to let it throw exception and I rewrote the loop to retry

    try {
      NRF.updateServices(s);
      i+=len;l-=len;
    } catch (e) {
      print(e);
    }

and now it works well, I get everything sent and the error is 0x13 = NRF_ERROR_RESOURCES
the output to console looks like

0 {"VERSION":"2v16.294
20 ","GIT_COMMIT":"2522
40 6e526","BOARD":"NRF5
Error: Error: ERR 0x13 (:1604)
40 6e526","BOARD":"NRF5
60 2840Dongle","RAM":26
80 2144,"FLASH":1048576
Error: Error: ERR 0x13 (:1604)
80 2144,"FLASH":1048576
100 ,"STORAGE":393216,"S
120 ERIAL":"05950628-564
Error: Error: ERR 0x13 (:1604)
120 ERIAL":"05950628-564
140 410a7","CONSOLE":"US
160 B","MODULES":"Flash,
180 Storage,heatshrink",
Error: Error: ERR 0x13 (:1604)
180 Storage,heatshrink",
200 "EXPTR":415444,"APP_
220 RAM_BASE":536882880}
Error: Error: ERR 0x13 (:1604)
220 RAM_BASE":536882880}

I wonder what is the reason for ignoring errors when trying to send notifications? Isn't it better to throw exception so it can be handled. I'd remove all those ignored errors starting here https://github.com/espruino/Espruino/blob/master/libs/bluetooth/jswrap_bluetooth.c#L1606

EDIT: I retested with 52832/SDK12 and I see it too. It mostly does not happen when maxchars is 20 so I did not notice before but when I set it to 50 I see something very similar