The fact that it continues to approximate UT1 means that tasks such as navigation which require a source of Universal Time continue to be well served by the public broadcast of UTC.
ðə fˈækt ðˌɐɾɪt kəntˈɪnjuːz tʊ ɐpɹˈɑːksɪmˌeɪt jˌuːtˈiː wˈʌn mˈiːnz ðæt tˈæsks sˈʌtʃ ɐz nˌævɪɡˈeɪʃən wˌɪtʃ ɹᵻkwˈaɪɚɹ ɐ sˈoːɹs ʌv jˌuːnɪvˈɜːsəl tˈaɪm kəntˈɪnjuː təbi wˈɛl sˈɜːvd baɪ ðə pˈʌblɪk bɹˈɔːdkæst ʌv jˌuːtˌiːsˈiː.