English Earning money on hockey using emerging arbitrage betting situations is no less effective than, for example, on football. The only significant difference between hockey surebets and those in other sports is seasonality. In the off-season, it is difficult to find hockey matches at all, let alone detect surebets emerging in those infrequent hockey matches.
At the same time, during the season, which lasts approximately half a year, the number of hockey surebets grows exponentially. This is because bookmakers open, first, many markets on hockey matches and, second, a large number of difficult-to-calculate events arise, which are the primary cause of surebets (see the article about surebets and the factors through which surebets arise).
The conclusion is simple: it is possible to earn money on hockey, and during the season it is sometimes even easier than on the extremely popular sports of football or tennis.