Oanda Credited My Account

Oanda credited my account for the 16 pip loss that occurred with an h-system trade yesterday.  It occurred because my take profit order fell within the spread due to major slippage.  When my order executed, Oanda had raised the spread to 20 pips.  I don't like when Oanda raises spreads but if I don't like it, I should make sure that I don't have any open orders during economic releases.   Oanda credited my account but they didn't have to according to the following email:

Yesterday morning at about 07h00 EST the Bank of England announced that
it was hiking Interest Rates 25 basis points. This decision surprised
the market sending the Pound sharply higher against all major
currencies. As the market sought new equilibrium, global liquidity
essentially dried up, resulting in large price gaps as prices literally
jumped to new levels, in a matter of seconds. This action caused
considerable slippage to ensue on your GBP orders. While it is
unfortunate that such slippage occurred, these orders were executed in
accordance with our execution policy on the price available on our FXTrade servers when the order arrived for execution.

• Ticket 1 was filled by Ticket 2 and was closed by Ticket 3. When 2 was executed, your embedded Take Profit Order fell within the spread, resulting in a loss upon the execution of 3.
  Due to the unfortunate nature of this circumstance, we have credited
  your account in the amount of this loss.  This credit is reflected by Ticket 4.
• Ticket 5 was cancelled on a BV:TP (Bounds Violation of your embedded
  Take Profit Order). This means that the price had exceeded your Take
  Profit level when it arrived for execution. The server cancelled this
  order with no action taken, as you had indicated in your instructions
  that you no longer wished to be in that trade when the price rose
  beyond 1.9457.

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